[s-cars] Turbo resetting, lost boost...

[Adam Cramer]

It's obvious the Audi gods are punishing you for letting someone else
drive your car!

I agree with the rest of the group. Check your hoses and clamps.  You
could also build an intake tester and pump some air in there to see if
you can find the leak.

Adam
95 S6 Avant


On Wed, 19 Jan 2005 23:29:49 GMT, jjmcvay at juno.com <jjmcvay at juno.com> wrote:
> 
> Help!
> 
> I let my cousin borrow my '94 S4 stock except for very recent ECU upgrades (3-bar, Minhea/Robert... woohoo!) for the winter driving school in New Hampshire last weekend after his V8 quattro was out due to a timing belt.  Here is what he says:
> 
> "Left your house, cruised along the highway.  As you
> had witnessed, the car had boost when I left.  About
> 20 minutes down 95, I went to pass a car, just fed in
> throttle in 5th gear.  Car stumbled heavily - on/off
> boost.  For the rest of the ride, car behaved as
> normally aspirated 5 cyl - very little if no boost.
> Next morning, car had boost on my way to work.  Boost
> all the way through weekend, on ride home again in 5th
> gear, fed in throttle and no boost - no stumbling this
> time, either.  When I stopped to get gas, shut car
> off, after leaving station, car had boost (and for
> rest of ride) although I didn't get heavily into the
> turbo the entire trip - mostly cruising.  Ray
> suggested MAF or crossover pipes, or spark/ignition
> issues.  Not sure."
> 
> Anybody had a similar experience/advice?  The car goes to the mechanic today or tomorrow.  Is it a pipe collapsing with the new boost?  Seems like the computer resets the engine to drive with low boost?  I drove it with crazy boost maybe 5 times since installing upgrades Dec. 22nd without a hitch.
> 
> Thanks,
> 
> Jeremy
> '94 S4
> 
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